3DM® 2 Online Help

Scheduling page
Show Scheduling Page
The Scheduling page appears when you choose Management > Scheduling from the menu bar.
The Scheduling page lets you set up a schedule for when background tasks (rebuild, migrate, initialize, verify, and self-test) should occur. Background tasks can have impact on the performance of your system, so you may prefer to schedule them at times when they will be least disruptive, such as in the middle of the night or on a weekend. For details about the different background tasks, see Background Tasks.
Select a type of task you would like to schedule. You start by selecting the type of task for which you want to set the schedule from the drop-down list at the top of the page.

| Rebuild/migrate tasks (also applies to initialization)

| Verify tasks (also applies to media scans)

| Self-tests

3DM 2 then updates the page to show you schedule details for that type of task.
Show Selecting a Type of Task
Scheduled Rebuild/Migrates. You can enable or disable the schedule for the Rebuild/Migrate tasks by selecting either Follow Schedule or Ignore Schedule. When schedules are set to be ignored, these tasks can be performed at any time, and are not restricted to the scheduled times.
Scheduled Verify Mode. You can select either Basic or Advanced verify mode. Basic verify creates a once a week schedule. Advanced verify has seven scheduling slots per week, similar to the Rebuild/Migrate schedule. For more information, see Selecting Advanced or Basic Verify Schedules.
Show Basic and Advanced Schedule Verify Tasks
Task Schedules
Initially, 7 schedule slots are defined, for 24 hours each. This means that even if Follow Schedule is enabled for Rebuild/Migrate or if Advanced is selected for Auto Verify, this schedule is equivalent to Ignore Schedule, because tasks can run at any time, round the clock.
A maximum of 7 slots can be created, so to set a different schedule, start by deleting one or more of the existing scheduled slots, and then add new slots.
For step-by-step instructions for adding and removing schedules, and setting schedules to be followed or ignored, see Scheduling Background Tasks.
Self-test Schedules
Unlike scheduling of rebuilds and verifies, scheduling of self-tests is always followed. To disable self-tests you either remove all schedule times, or uncheck the tests listed in the Tasks column.

| Note: Only the checked tasks will be run during the scheduled times. If none of the tasks are checked, self-tests will never run, even if you have scheduled time slots set.

Check SMART Thresholds. This test checks to see whether SMART thresholds have been exceeded.
The SMART thresholds indicate when a SATA or SAS drive is likely to fail, based on the number of errors that have been recorded through SMART (Self-Monitoring, Analysis and Reporting Technology).
If any of the disk drives have detected a “threshold exceeded” condition, then an AEN is logged to the 3DM 2 Alarms page. Moreover, if anything unusual is found during any self-test, it will be logged as an Alarm.

Related Topics
  Viewing Current Task Schedules
  Turning On or Off Use of a Rebuild/Migrate Task Schedule
  Removing a Task Slot from a Schedule
  Adding a New Task Schedule Slot
  Selecting Self-tests to be Performed
  Starting a Verify Manually
  Selecting Advanced or Basic Verify Schedules
  Using Auto Verification

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